Brief
An outbound voice agent that books meetings, qualifies leads, and hands warm conversations to a human. It handles more than 5,000 calls a day at conversion rates matching senior SDRs.
5k
Calls / Day
11%
Connect → Book
40%
Cost vs SDR
Problem
Outbound qualification only scaled by adding headcount, and the first conversation, the one that decides whether a lead is worth a human at all, was the most expensive and least differentiated part of the job.
Solution
- An adaptive script engine that branches on the objection it actually detects, rather than reading a fixed tree.
- Real-time CRM enrichment and calendar booking mid-call, so a qualified lead is booked before the call ends.
- Compliance-aware handling for TCPA and GDPR, including built-in opt-out detection.
- A live supervisor view with whisper and takeover, so a human can step into any call in progress.
Result
The agent handles 5,000 calls a day, books 11% of connected calls, and runs at roughly 40% of the cost of the equivalent SDR capacity, with humans spending their time on conversations that have already been qualified.
Under the hood
| Telephony | Twilio |
|---|---|
| Speech / voice | Deepgram streaming STT, ElevenLabs TTS |
| Reasoning | GPT-4o with an adaptive branching script engine |
| Backend | FastAPI, PostgreSQL |
| Compliance | TCPA and GDPR handling, automatic opt-out detection |
